V-Infinity, LLC, 20050 SW 112th Ave., Tualatin, OR 97062

www.v-infinity.com

1-866-372-1258

Rev. 11-2006

3/ 3

VRA3-DIP Series Dc-Dc Converter

Typical Characteristics

Operating Temp.(

)

C

Temperature Derating Graph

23

9 1011

2322

16 1514

2,3

10,15

14

11

9,16

22,23

-in

NC

+Vo

-Vo

0V

Vin

V

Pin

Bottom View

23

9 10 11

23 22

1615 14

2 x 2.54

31.80

15.24

2.54

22.86

(Bottom View)

(Side View)

20.30

9.45

0.50

4.00

MP:10.5

Note: All Pins on a 2.54mm pitch; All Pin diameters are 0.50 mm(Tolerance:±0.10);

Vo+

0V

Vo-

Input Voltage (V)

Input Voltage

Range

Ip

General:

Cin:

5V,12V

100uF

24V,48V

47uF

22uF

Cout:100uF

External Capacitor Table

Vout

Cout (Max)

5

500µF

9

240µF

12

150µF

15

120µF

24

100µF

Outline Dimensions &

Recommended Footprint Details

Application Note

Recommended circuit

All the VRA3-DIP Series have been tested according to the following

recommended testing circuit before leaving factory. This series should be

tested under load. Never be tested under no load (see figures 1 & 2). If

you want to further decrease the input/output ripple, you can increase

capacitance properly or choose capacitors with low ESR. However, the

capacitance should not be too high (external capacitor table). If you want

to use the products in high EMI, please choose our metal packaged

products.

Input Current

When it is used in unregulated power supply, be sure that the fluctuating

range of the power supply and the rippled voltage do not exceed the

module standard. Input current of power supply should afford the startup

current of this kind of DC/DC module (see figure 2).

General: lp

≤1.3*lin-max

Pin Connections

Requirement on Output Load

To ensure this module operates efficiently and

reliably, a minimum load is specified for this

kind of DC/DC converter in addition to a

maximum load (namely full load). During

operation, make sure the specified range of

input voltage is not exceeded, the minimum

out put load is not less than 10% of the full

load, and that this product should never

be operated under no load!!! If the

actual load is below the specified minimum load,

the output ripple of this type of DC/DC converter

will increase drastically and at the same time

efficiency & reliability of the circuit will decrease

deeply .If the actual output power from the load

in your circuit is very small, please connect a

resistor with proper resistance at the output end

to in parallel to increase the load, or use our

company’s other products with a lower rated

output power.

The products cannot be used in parallel and

in plug and play.